FB_TempCtrlState_TcPfw()

This function block determines a set of state information of a zone.

Syntax

VAR_INPUT
    ModuleId:INT:=-1;
    ZoneId:INT:=-1;
END_VAR
VAR_OUTPUT
    Disabled         : BOOL;
    Enabled          : BOOL;
    OnStandBy        : BOOL;
    Error            : BOOL;
    Tuning           : BOOL;
    Alarm_LL         : BOOL;
    Alarm_L          : BOOL;
    Alarm_H          : BOOL;
    Alarm_HH         : BOOL;
    Alarm_AL         : BOOL;
    Alarm_AH         : BOOL;
    ExtruderBlock    : BOOL;
    Alarm_NoResponse : BOOL;
END_VAR

Inputs

Name	Type	Description
ModuleId	INT	ModuleId of the temperature zones to be controlled.
ZoneId	INT	ZoneId of the temperature zones to be controlled.

Outputs

Name	Type	Description
Disabled	BOOL	TRUE if the zone is not enabled.
Enabled	BOOL	TRUE if the zone is enabled.
OnStandBy	BOOL	TRUE if the zone is enabled and switched to lowering.
Error	BOOL	TRUE if the zone is in an error state.
Tuning	BOOL	TRUE if the automatic tuning function of the zone is active.
Alarm_LL	BOOL	TRUE if the actual temperature of the zone falls below the outer negative tolerance threshold.
Alarm_L	BOOL	TRUE if the actual temperature of the zone falls below the inner negative tolerance threshold.
Alarm_H	BOOL	TRUE if the actual temperature of the zone falls below the inner positive tolerance threshold.
Alarm_HH	BOOL	TRUE if the actual temperature of the zone exceeds the outer positive tolerance threshold.
Alarm_AL	BOOL	TRUE if the actual temperature of the zone falls below the negative absolute alarm threshold.
Alarm_AH	BOOL	TRUE if the actual temperature of the zone exceeds the positive absolute alarm threshold.
ExtruderBlock	BOOL	TRUE if the actual temperature of the zone falls below the negative absolute alarm threshold and this causes the extruder to shut down.
Alarm_NoResponse	BOOL	TRUE if the actual temperature of the zone does not show an appropriate response to the heating power. Possible cause is, for example, an incorrectly mounted sensor or a defect in the heater that cannot be detected by other means.

Behavior of the function block:

In each cycle, the function block updates the state of one or more zones. Here, the behavior is determined in detail by the call:

If the function block is called with unknown ModuleId>0 and/or an unknown ZoneId>0 or if aaaPfwTempToHmi[..].InUse=FALSE all outputs are FALSE.
If ModuleId<>0 and ZoneId=0, the states of all zones of the module are ORed.
If ModuleId<>0 and ZoneId<>0, the state of the selected zone is reported.